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US stock index futures were trading near the unchanged line this morning following a bruising week that left the Dow and the S&P 500 lower for the third straight week. Crude prices jumped over 2 percent on a bullish call from Goldman Sachs and says the market has moved from a state of oversupply to a deficit, and believes major supply disruptions in markets such as Nigeria, Venezuela and China will sharply lower production levels.

What Is Moving the Markets

LONDON (Reuters) - Oil prices jumped over 2 percent on Monday to their highest since November 2015 on growing Nigerian oil output disruptions and after long-time bear Goldman Sachs said the market had ended almost two years of oversupply and flipped to a deficit.

LONDON (Reuters) - HSBC , Europe's largest bank, started laying off 840 information technology workers in Britain on Monday, the first big tranche of redundancies under a restructuring plan that will eliminate 8,000 British jobs by the end of next year.

(Reuters) - Gannett Co Inc , the publisher of USA Today, raised its all-cash offer to buy Tribune Publishing Co to $15 per share from $12.25, valuing the publisher of the Chicago Tribune and the Los Angeles Times at about $864 million.

SEATTLE (Reuters) - Boeing Co's high-tech 787 Dreamliner has had its share of trouble, from early production delays to batteries that smoked and burned, grounding the worldwide fleet for months in 2013.

(Reuters) - Ride-hailing service Didi Chuxing, Uber Technologies Inc's main rival in China, is working toward an initial public offering in the United States that would likely take place in 2018, a person with knowledge of the plan said on Monday.

After three consecutive weeks of seemingly relentless bad news for Apple, moments ago the stock jumped by $2 dollars, rising from $90.5 to over $92.50. There was some confusion as to why the jump and then it was revealed that none other than that "other" billionaire, Warren Buffett, has decided to start building a stake in the world's biggest cell phone company to the tune of 9.8 million shares or about $1.07 billion as of March 31.

Making some more sense of the transaction, CNBC adds this was not a direct Buffett purchase - who has previously announced he "does not understand tech" - but one made by one of his two lieutenants.

The 9.8 million share position makes Buffett the 56th largest holder of AAPL, still well behind the Swiss National Bank, which as we reported last week was aggressively buying AAPL stock in Q1, adding some 4.1 million shares to its now record 14.5 million share holding in the tech company.

And so with Carl Icahn's "no brainer" trade in AAPL being unwound in late April, it appears that in addition to the SNB, the other major counterparty who was buying Carl's shares was none other than folksy uncle Warren.

Considering that the news comes days after it was announced that Buffett is also seeking to get involved in the Yahoo financing, one wonders if Berkshire has changed its bankers in recent days and is now being advised to buy into "growth" and tech companies.

Or maybe, with Buffett also adding to his investment in money-losing IBM, perhaps Buffett's entire philosophy on investing has been flipped on its head ...

There's not much in the way of meaty data to chew on this week, but the still-fresh reaction to Friday's upbeat retail sales report in addition to a dozen quarterly updates from the likes of Wal-MartÂ and Target should keep investors looking for more clues from the retail sector.

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